The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 19, 1991
Filed:
Feb. 17, 1989
David P Summers, Montgomery, TX (US);
American Biomed, Inc., The Woodlands, TX (US);
Abstract
A distal atherectomy catheter comprises a flexible outer catheter tube housing a reciprocal cutting element at its distal end. The cutting element is connected to an inner catheter tube concentrically located within the outer catheter tube. An annular passage defined between the inner and outer tubes provides a discharge passage communicating with an external vacuum mechanism for collection of excised material removed from the coronary vessel. A flexible drive shaft extending through the inner catheter tube terminates in a detachable cutting burr for boring through obstructions in the coronary vessel. The drive cable is connected to an external drive motor.